A person is using a white toilet brush. It suggests the moment is about to continue into the next scene.
Kaze-san @KAZEsannnn_

Tôi chán quá...Tôi chán quáoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo so so so so so so so so...